Mature embryo, Biology

Assignment Help:

Mature Embryo

A typical dicotyledonous embryo, as seen in a median longitudinal section, consists of an embryonal axis having two broad cotyledons. The portion of embryonal axis above the level of cotyledons is termed epicotyl which terminates in the plumule or stem tip. The cylindrical portion below the level of cotyledons is called the hypocotyl which terminates at the lower end in the radicle or root tip. The root meristems is covered by a well defined root cap.

The embryo of monocotyledons, possesses only one cotyledon. The grass embryos is highly specialized and has received a great deal of attention. It has a single cotyledon in the form of scutellum, which appears to be laterally attached to the embryonal axis. At its lower end the embryonal axis has the radicle and root cap, enclosed in an undifferentiated part of the embryo called coleorhiza. On one side the coleorhiza is given out a small outgrowth called the epiblast. The portion of embryonal axis above the level of attachment of the scutellum is termed epicotyl. It has a shoot apex with some leaf primordia, enclosed in a hollow foliar structure called the coleoptile.


Related Discussions:- Mature embryo

Classification of habituating drugs, CLASSIFICATION OF HABITUATING DRUGS - ...

CLASSIFICATION OF HABITUATING DRUGS - There are a large number of drugs on which people become dependent. These are classified into 2 main categories - (i) Psychotropic d

Minerals requirements during congestive cardiac failure, Q. Minerals requir...

Q. Minerals requirements during congestive cardiac failure? Minerals: Since sodium and potassium are the major electrolytes associated with oedema, it is important that sodium

Define drug effects on food intake - causes taste changes, Define drug effe...

Define drug effects on food intake - Causes Taste Changes? Several drugs can cause an alteration in taste sensation, reduced acuity of taste sensation or leave an unpleasant af

Define homogenization or blending of food sample, Define Homogenization or ...

Define Homogenization or Blending of Food Sample? Food homogenization - Liquid food samples are mixed manually before analyzing whereas solid foods are homogenized in a diluent

Parenchymal inflammation, Parenchymal Inflammation Parenchymal inflamm...

Parenchymal Inflammation Parenchymal inflammation can be due to infectious diseases or acute bronchitis or pneumonia discussion will be mainly on pneumania in the following t

The immediate effects of exercise on the heart and the lungs, (a) What are ...

(a) What are the immediate effects of exercise on the functions of (i) the heart, (ii) the lungs, (iii) the liver? (b) How do these changes help to meet the needs of exercise

Which term describes a very heart/pulse rate, In studies of human body, whi...

In studies of human body, which of the below terms is used to describe a very rapid heart rate or pulse rate? Is it: a) Tachycardia b) Bradycardia c) Cardiosis d) Myoc

Does glycolysis occur within the mitochondria, Does glycolysis occur within...

Does glycolysis occur within the mitochondria? Glycolysis occurs in the cytosol and not within the mitochondria. Pyruvic acid molecules later enter mitochondria to participate

Bacteria and archea, Based on the scientific name. Streptococcus agalactia...

Based on the scientific name. Streptococcus agalactiae what morphology would you expect these cells to have?

Microbiology, different applications of microbiology

different applications of microbiology

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd